Service manual

Field Setting SiUS28-902_a
59 Test Operation
k: ON h: OFF l: Blink
Setting item 0 Display contents of “Various settings”
No. Setting item
LED display
Data display
H1P H2P H3P H4P H5P H6P H7P
0 Various settings
lhhhhhh
See below
5 Number of connected indoor units
lhhhkhk
Lower 6 digits
14
Contents of malfunction (the
latest)
lhhkkkh
Malfunction
code table
15
Contents of malfunction
(1 cycle before)
khhkkkk
16
Contents of malfunction
(2 cycle before)
khkhhhh
20 Contents of retry (the latest)
khkhkhh
21 Contents of retry (1 cycle before)
khkhkhk
22 Contents of retry (2 cycle before)
khkhkkh
Defrost select setting
Short
lhhhkhh
Medium
lhhhlhh
Long
lhhhhhh
Te setting
H
lhhhhkh
M
lhhhhlh
L
lhhhhhh
Tc setting
H
lhhhhhk
M
lhhhhhl
L
lhhhhhh
c. Monitor mode
<Selection of setting item>
<Confirmation on setting contents>
To enter the monitor mode, push the
MODE button (BS1) when in
“Setting mode 1”.
Push the SET button (BS2) and set
the LED display to a setting item.
Push the RETURN button (BS3) to
display different data of set items.
Push the RETURN button (BS3) and
switches to the initial status of
“Monitor mode”.
∗ Push the MODE button (BS1) and
returns to “Setting mode 1”.
Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and
enter the data for each setting.
 Data such as addresses and number of units is expressed as binary numbers; the two
ways of expressing are as follows:
The No. 5 cool/heat unified address is expressed as a binary
number consisting of the lower 6 digits. (0 - 63)
In  the address is 000110 (binary number), which translates to
4 + 2 = 6 (base 10 number). In other words, the address is 6.
l hlhllh
16 4 1
32 8 2